Lock.



Patented May l3, I902.

G. H; BRIGDEN.

LOCK.

(Application filed June 17, 1899.)

2 Sheets-Sheet L (No Model.)

Mam/V 7 THE mama Pl'YERS co. womuma. wAsmNuroN o c Patented May I3, I902.

C. H. BRIGDEN.

LUCK.

(Application filed June 1'1, 1899.]

2 Sheets-Sheet 2.

(No Model.)

J. & A m mim, 5%

TH: NORRIS PiYERS co. PHOTQLIYHO" wunmuwu, 0.4L

NlTqED STATES PATENT OFFICE.

CHARLES H. BRIGDEN, OF YON KERS, NEYV YORK.

LOCK.

' SPECIFICATION forming part of Letters Patent No. 699,831, dated May 13, 1902.

Application filed June 17,1899. Serial 110.720,?383. (No model.) i

To (all whom, i2; 77t(t 7/ concern:

Be it known that 1, CHARLES H. BRIGDEN, of Yonkers, in the county of Westchester and State of NewYork, have invented certain new and useful Improvements in Locks, of which the following is a specification.

This invention relates to looks; and it consists in certain novel features of construction and arrangement therein hereinafter described and claimed.

The invention, as subsequently described herein, is embodied in a hasp-lock, such as those employed on trunks or for other purposes; and one object of the invention is to provide an improved construction of that type of lock in which the screws or other attaching devices by means of which the lock is secured to its base may be covered over and protected.

The invention also has for its object to improve in general the construction of locks, as hereinafter explained.

Of the accompanying drawings, Figure 1 represents a front elevation of a lock constructed in accordance with my invention, showing also the parts which it secures or looks. Fig. 2 represents a similar View with the hasp thrown back. Figs. 3 and a represent views in elevation, showing the parts inside the casing in different positions. Fig. 5 represents a similar View with the tumblers removed. Fig. 6 represents a section on the line 6 6 of Fig. 1. Figs. 7 and 8 represent sections on the lines 7 S 7 8 of Fig. 1, showing the key inserted and the parts in different positions. Fig. 8 represents a detail View, hereinafter referred to.

The same reference characters represent the same parts in all the figures.

Referring to the drawings, a and b represent the parts to be secured by the lock, the said parts being, for instance, a door and jamb or two doors or the body and lid of a trunk. The form of lock represented in Figs. 1 to 8, inclusive, is particularly adapted for use in situations where a hasp. and padlock areordinarily employed.

0 designates a plate having holes for the reception of screws 0 0, bolts, or other at taching devices, whereby the said plate is attached to the door or other member Ct. In alineme'nt with the plate 0 on the jamb or other member I) is mounted a second plate (Z, provided with a keeper d, formed as a staple and having holes for the reception of screws (1 (Z or equivalent attaching devices for securing the said plate to the member I).

e is a plate or hasp hinged at c to the end of the plate 0 farthest from the edge of the door or member a and having an aperture c near the end opposite the hinge, which is adapted to be entered by the staple (1 when the plate e is thrown over to cover the plates 0 and d, as represented in Figs. 1 and 6. A bolt f, forming part of a lock mechanism hereinafter described and located behind the aperture 6 is adapted to enter the eye of the staple 01' when the plate 6 is positioned as described, so as to lock said plate to the staple. The plate 6 and its bolt mechanism therefor operate somewhat after the manner of the ordinary hasp and padlock, and when the bolt is withdrawn the hasp a can be thrown back, as represented in Fig 2, to unlock the members CL and b.

It will be noted that when the plate e is in looking engagement with the staple d, as represented in Figs. 1 and 6, the plates 0 and d are covered over, and it is then impossible to obtain access to the heads of the screws 0 (1 except by withdrawing the bolt f or breaking the lock.

9 is a cap attached by screws 9 g to the plate 8 and constituting, together with said plate, a casing which incloses the mechanism of the lock. The screws 9 are screwed into tapped lugs 9 formed on the inside of the cap g and flush with its inner edge. The bolt j, which is beveled on its end, so as to snap into engagement with the staple d, is mounted between guiding-lugs g g inside of the cap g and is yieldingly projected into locking position by means of a bar-spring h, interposed between said boltand an annular boss g formed on the interior of the cap 9.

2' is a bolt-retracting platemounted to slide in the same longitudinal direction as the bolt f and having formed near one end a slot 11, elongated in the direction of the movement of the bolt, which slot is occupied by a pin f, secured to the rear end of the bolt f. The bolt is thereby permitted to snap into engagement with its staple without moving the plate As shown in Fig. 6, the boltis slotted Iongitudinally at f to allow for its movement inner sides of the legs 2 2 of the respective with respect to the plate. p

j is a knob located on the outer side of the cap g and attached by a screw j to the plate i, the stem of said knob passing through an elongated slot 9 formed in the wall of the cap. By manipulating the knob the plate 11 when unobstructed can be moved longitudinally to retract the bolt f, the two being again projected by the spring h when said knob is released. At its rear end the plate 1' is recessed at i to provide a guiding engagement with the tapped stud during the longitudinal movement of the plate. Saidplate 2' also has a slot 2' formed in it near its rear end to permit the passage of the key for operating the bolt. Said key 76 is represented a in Figs. '7 and 8.

Located inside the casing and mounted to oscillate within the annular boss g is a circular disk m, formed with an elongated slot 722 for the passage of the fiat stem of the key it. The cap g is formed with a keyhole g in register with the center of the disk m,through which the key is adapted to be inserted, and the disk m partially covers said keyhole, so as to protect the lock mechanism from tampering. The disk also partly supports the key when it is turned in the look. A hole a is formed in the plate efor retaining and guiding the end of the key.

n is a second disk mounted next the disk m, within the annular boss 9 and illustrated in detail in Fig. 8. It has a central aperture 11. for the passage of the stem of the key and two lugs 01 n projecting from opposite sides of said aperture and adapted to be en gaged by the wards 7c is of the key, whereby when the key is turned said disk 77. is partially rotated. Two lugs n 02 located at separate points on the margin of the disk 11, are arranged to engage abutments i t on the plate 2', whereby when the disk 02 is rotated by the key said plate 11 and the bolt f will be retracted.

0 0 represent fiat bolt-controlling tumblers pivoted to the tapped stud Q12 and having legs or forks 2 2, between which the key 70 is adapted to be inserted.

0 o are bar-springs attached atone end to the respective tumblers 0 and engaged at their other ends with opposite sides of the cap g. Said springs normally operate to hold the ends of the legs 2 2 on the tumblers in the path of two separated stops or lips & i turned up on the intermediate portion of the plate 2', whereby the retraction of said plate is normally prevented. This position of the parts is shown in Figs. 3 and 7. The key 70 has wards Z0 M, which when said key is insorted in the keyhole g and turned lengthwise thereof, as represented in Fig. '7, pass through the holes of the disks and plate and between the legs of the tumblers without disturbing the position of said tumblers; but when the key is turned crosswise, as represented in Fig. 8, the said wards engage the tumblers and move said tumblers into register, bringing their legs 2 in alinement with the space between the stops and out of the path of said stops, as represented in Fig. 4. The continued rotation of the key then retracts the plate 2' and boltf, as previously described.

I further provide a tumbler-displacing device for releasing the bolt and permitting it to be operated by hand by manipulating the knob j. Said device, as here shown, consists of a small rotary disk 19, mounted in a shallow counterbore on the inner side of the plate 6 and exposed through a hole 6 in said plate. The head of said disk is provided with a slot 19, adapted to receive the end of the key 70, so as to turn the disk, and on its inner side is formed with a cross-bar p interposed be tween the legs 2 2 on the tumblers o and adapted when turned longitudinally of said legs, as represented in Fig. 3, to allow the tumblers to obstruct the plate '5 and prevent the retraction of the bolt. hen the disk is rotated to turn the bar 23 crosswise the said legs, however, the ends of the bar form abutments, acting against the inner edges of the legs, whereby the tumblers are brought into register, as shown in Fig. at, in the same manner as when operated by the key. The plate i may then be retracted by manipulating the knob j.

It will be seen that the disk 19, being on the inner side of the lock-casing, is inaccessible except when the hasp or lock-casing is thrown back, as shown in Fig. 2.

I do not confine myself to the exact details herein set forth, as the same may be vari- ICC ously modified without departing from the spirit of my invention.

I claim- 1. A look comprising a plate having holes adapted to receive screws or other attaching devices, a hasp hinged thereto and arranged to close over said plate and carrying a springprojected bolt, key-operated means for re tracting said bolt, tumbler mechanism for normally preventing the retraction of the bolt except bya key, and means accessible solely when the hasp is opened for displacing the tumbler mechanism to permit the bolt to be retracted without the use of a key.

2. A look comprising a latching-bolt, a boltretracting plate, a slot in one of saidmem-- ed therein, key-actuated means for operating.

said bolt, a series of bolt-controlling tum- IIO blers normally spring-held in bolt-obstruet- I bolt mounted in said casing, a series of keying positions and movable in opposite directions into bolt-releasing positions, a casing inelosing said parts, and a rotary member mounted in the casing and exposed externally through a hole therein, said member having tumbler-displacing abutments interposed between the tumblers and adapted when the member is rotated, to move the tumblers into bolt-releasing positions.

4. A look comprising a plate, a hasp hinged thereto and provided with a lock-casing, a

operated bolt-controlling tumblers within the casing, a bolt-retracting knob located on the outer side of the casing and a tumbler-displacing deviee located on the inner side of the casing.

In testimony whereof I have affixed my signature in presence of two Witnesses.

CHARLES H. BRIGDEN. Witnesses:

MARCUS B. MAY, R. M. PIERSON. 

